Thirteen-year old granddaughter of John Hammond and older sister of Tim Murphy. She and her younger brother came to Jurassic Park to visit their grandfather, and also to go on the initial tour of the park, since Hammond seemed to be specifically aiming the park at children. Lex was very nearly traumatized by the Tyrannosaur’s attack on vehicle they where in. She and her brother were in when Donald Gennaro, who had been riding with them, abandoned them in panic moments before the attack came. Because of this, she at first refused to leave Alan Grant side following the ordeal. Eventually though, she calmed down and became her old self again.
After arriving at the Visitors Center and narrowly escaping death at the claws of Velociraptors in the kitchen, she ran to the control room with Grant, Ellie Sattler and Tim. There, she used her computer skills on Dennis Nedry's computer and managed to fix what he had done by rebooting the phones and door locks, allowing the survivors to call for help. She survived the ordeal.
A New Life
13 years after the original Jurassic Park closed, Lex is a wealthy businesswoman petitioning for the original islands to stay closed to the public. She's shocked to learn that dinosaurs are behind crop losses in Texas.
Ariana Richards played Alexis Murphy in both the first and the second Jurassic Park films, though she was only in the second film very briefly at the beginning.